A member asked:

I have had a swollen lymph node on neck and stiff neck for a week now. i had a hepatits b vaccination the day before the stiff neck began, related?

A doctor has provided 1 answer

Rare possibility: Side effects to this vaccine are rare but statistically possible. Your symptoms are listed as low possibility. Lymph nodes produce antibodies when the body begins to fight infection. Vaccines "trick" the body into thinking there is an infection so the antibodies are ready to attack the real virus quickly if it gets in you. See your MD this week as symptoms over a week. http://www.drugs.com/sfx/hepatitis-b-adult-vaccine-side-effects.html

Answered 3/27/2017

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